Geological Survey of Canada, Current Research (Online) no. 2010-6 PDF Download

Author: P.-S. Ross
Publisher: Natural Resources Canada
ISBN: 1100147861
Category : Igneous rocks
Languages : en
Pages : 15

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Author:
Publisher: Natural Resources Canada
ISBN: 110014563X
Category : Geothermal resources
Languages : en
Pages : 18

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Book Description

Author: N. M. Rayner
Publisher: Natural Resources Canada
ISBN: 1100145907
Category : Geochronometry
Languages : en
Pages : 15

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Book Description

Author: J. Spratt
Publisher: Natural Resources Canada
ISBN: 1100145893
Category : Basins (Geology)
Languages : en
Pages : 12

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Author: O. van Breemen
Publisher: Natural Resources Canada
ISBN: 1100145915
Category : Uranium-lead dating
Languages : en
Pages : 9

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Book Description

Author: B. R. Edwards
Publisher: Natural Resources Canada
ISBN: 0662428269
Category : Mines and mineral resources
Languages : en
Pages : 14

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Author:
Publisher: Natural Resources Canada
ISBN: 1100126775
Category :
Languages : en
Pages : 23

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Book Description

Author: K. J. Schulz
Publisher: Geological Survey
ISBN: 9781411339910
Category : Business & Economics
Languages : en
Pages : 868

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Book Description
As the importance and dependence of specific mineral commodities increase, so does concern about their supply. The United States is currently 100 percent reliant on foreign sources for 20 mineral commodities and imports the majority of its supply of more than 50 mineral commodities. Mineral commodities that have important uses and face potential supply disruption are critical to American economic and national security. However, a mineral commodity's importance and the nature of its supply chain can change with time; a mineral commodity that may not have been considered critical 25 years ago may be critical today, and one considered critical today may not be so in the future. The U.S. Geological Survey has produced this volume to describe a select group of mineral commodities currently critical to our economy and security. For each mineral commodity covered, the authors provide a comprehensive look at (1) the commodity's use; (2) the geology and global distribution of the mineral deposit types that account for the present and possible future supply of the commodity; (3) the current status of production, reserves, and resources in the United States and globally; and (4) environmental considerations related to the commodity's production from different types of mineral deposits. The volume describes U.S. critical mineral resources in a global context, for no country can be self-sufficient for all its mineral commodity needs, and the United States will always rely on global mineral commodity supply chains. This volume provides the scientific understanding of critical mineral resources required for informed decisionmaking by those responsible for ensuring that the United States has a secure and sustainable supply of mineral commodities.

Author: James S. Aber
Publisher: John Wiley & Sons
ISBN: 1118349539
Category : Science
Languages : en
Pages : 628

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Book Description
Wetlands - swamp, marsh, bayou, tundra and bog - are places that are rarely visited and often misunderstood but they have, in fact, conspicuous roles in the physical, biological and cultural geography of the world. They are intrinsically beautiful environments where one may see the natural and essential values in the interaction of water, soil, vegetation, wildlife, and humans. Wetlands occur at the confluence of unique terrestrial, hydrological and climatic conditions that give rise to some of the most biodiverse regions of the world. They also play vital roles in the cycling and storage of key nutrients, materials and energy through the Earth?s system. A complete study of wetland environments requires the assessment of their physical and biological attributes, properties and functions of these ecosystems, and the economic, political and social aspects that mediate their use globally. A systems approach is taken throughout this book which emphasizes the interactions between these elements of wetland ecosystems. Moreover, selected case studies from across the world are used to illustrate wetland characteristics and circumstances. This book is intended to foster a greater awareness and appreciation of wetlands, promote a culture of conservation and wise management, and spread the knowledge that wetlands are important, indeed crucial, elements of the global environment. Our attempts to understand, manage and enhance wetlands in the twenty-first century are part of the larger effort to maintain a sustainable Earth. Readership: Introductory or intermediate level undergraduates taking courses on wetland environments Additional resources for this book can be found at: www.wiley.com/go/aber/wetland

Author: Raymond V. Ingersoll
Publisher: Geological Society of America
ISBN: 0813725402
Category : Science
Languages : en
Pages : 768

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Book Description
Through a remarkable combination of intellect, self-confidence, engaging humility, and prodigious output of published work, William R. Dickinson influenced and challenged three generations of sedimentary geologists, igneous petrologists, tectonicists, sandstone petrologists, archaeologists, and other geoscientists. A key figure in the plate-tectonic revolution of the 1960s and 1970s, he explained how the distribution of sediments on Earth's surface could be traced to tectonic processes, and is widely recognized as a founder of modern sedimentary basin analysis. This volume consists of 31 chapters related to Dickinson's research interests; many of the authors are his former students, their students, and their students' students, demonstrating his continuing profound influence. The papers in this volume are an impressive tribute to the depth and breadth of Bill Dickinson's contributions to the geosciences.